Hydrocarbon incandescent lamp.



J. GOULBT.

nmnooumou momnnsonm LAMP.

APPLICATION FILED JAN. 4, 1911.

Patented Dec. 19, 1911.

'Illlll mmmtmac.

J. GOULET.

HYDBOOABBON INOANDESOENT LAMP. APPLICATION rum) an. 4, 1911.

Patented Dec. 19, 1911.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

JULES GOULET, F BRUSSELS, BELGIUM, ASSIGNOR TO ALBERT DESIRE DEVOS, OF

THE HAGUE, NETHERLANDS.

HYDROCABBON INCANDESCENT LAMP.

Specification of Letters Patent.

Application filed January 4, 1911.

Patented Dec. 19, 1911.

Serial No. 600,689.

To all whom it may concern:

Be it known that I, J ULES GoULE'r, a c1t1- zen of the French Republic, and resident of Brussels, Belgium, have invented certain 5 new and useful Improvements in and Relating to Hydrocarbon Incandescent Lamps, of which the following is a specification.

This invention relates to an incandescent lamp the lighting being effected by a single operation as in an or inary lamp, and in which the mixture of the burning agent is controlled by a valve.

The invention also relates to improvements in the details of construction and arrangement of parts which will be herein after described and particularly pointed out in the claims.

In the accompanying drawing: Figure 1 is a vertical section of a lamp constructed in accordance with my invention. Fig. 2 is a vertical section of a block formed of porous substance. Fig. 3 is a vertical section of a modified form of the invention. Fig. 4 is a vertical section of another form of the invention.

Referring to Fig. 1, 1, designates the lamp body which is provided with a tubular extension 2, adapted to receive a tube 3, which is provided at its upper end with a shoulder 4, and a gallery 5, intended to hold the usual glass chimney 6, in position. The said chimney 6, is provided at a short distance from its lower end with a plurality of holes 7.

Soldered to the central part of the body of the lamp is a tube 8, which rises a little higher than the holes 7, in the chimney and at its upper end it is provided with an ordinary w1re gauze screen 13. In the lower part of said tube two rows of holes 9 and 10 are provided. Inside the tube 8, and between the two rows of holes 9 and 10 is a conical partition wall 11, which is provided near its center with a certain number of o enings 12. Operating in the lower part 0? the tube 8, is a piston 15, having a conical bottom 14, rovided with a series of holes 16, which unli e those 12 of the partition wall 11, are positioned near the periphery of said bottom 14. The piston 15, has pivoted to it at 22, a rod 22, connected to a pin 21, on a crank 20, extending from the end of a rod 18 which is mounted in a sleeve 19 in the tube 8. The outer end of the rod 18, is provided with a milled knob '17, by means of which the piston 15, may be raised or lowered in the tube 8. An annular chamber 23, surrounds the lower portion of the tube 8, and is open at its upper end and is closed at its lower end by the curved bottom 24;, of the tube 25, which forms said chamber, said tube being secured to the tube 8, between the two series of openings 9, and 10, so that the chamber 23, is in communication with the inside of the tube 8.

On the tube 8, slides a sleeve 26, the upper end of which is flared as at 27, the edge of the flared portion fitting against the inner surface of the lamp chimney 6.

A rod 28, is securedto the sleeve 26, and projects through a slot 29, in the tube 3, whereby the sleeve may be raised and lowered.

For the urpose of allowing the introduction of hy rocarbon the body 1, is provided with the usual tubular extension having a screw threaded plug (not shown) and inside the said body of the lamp is placed a porous substance which is intended to absorb the said hydrocarbon.

The incandescent mantle is held in position above the burner in the usual manner.

The lighting of the lamp is effected by first lowering the sleeve 26, by operating the rod 28, and by inserting a lighted match through one of the holes 7, of the chimney. The fiame of the match then sets up a current causing the air to enter the lamp through the holes 7, and into the annular space formed between the tube 3, and the tube 8. The air current then enters the upper part of the lamp body 1, where it is divided into two streams, one of which passes through the space 23, and the holes 10, inside the tube 8, under the piston 15. At this point the air current meets the combustible vapors carried on by the other part of the current 2, passing through the porous material and passing through the openings 12, of the conical partition wall 11. The mixing of the air and the combustible vapors produces the gas for illuminating purposes. The current of air admitted is controlled by the position of the piston, as will be obvious. The mixture thus formed flows to the burner 13, passing through the openings 16. The arrangement of the holes 12, near the center, and of the holes 16, near the periphery of their respective wall is for the purpose of rendering the mixture of air and combustible vapors as intimate as possible. On the other hand this same arrangement allows of communication being entirely cut oil between the inside of the tube 8, and the space 23, on the one hand, and the interior of the body 1, on the other hand. In fact, when the knob 17, is rotated until the bottom. 14 comes into contact with the partition wall 11, the holes 16, are entirely closed by the partition wall 11, while in quite a similar manner the holes 12, are open when the piston is moved from the partition. By this construction the flame may be readily extinguished.

The block of porous substance which has been shown by Fig. 2 is formed of a mass of wood felt 30, of approximately the shape of the inside of the body of the lamp. The block is provided with a central enlarged openin 31, in which the tube 25, is seated when tie parts are assembled. The block is also provided with a number of small channels 32, for the passage and distribution of the hydrocarbon.

In lieu of the block described, I may employ a series of superposed Washers or rings.

In the modified construction of burner shown in Fig. 3, I do away with the openings in the lamp chimney. In this form of the invention, the tube 3, of the burner is rovided with a flange 33, in which several holes 34, are formed which allow of a match being introduced for lighting purposes. Under normal conditions the said holes are closed by a flange 35, on the sleeve 26, but when it is desired to light the lamp, the holes 36 are brought into registry with the holes 34, this operation being carried out by horizontally moving the rod 28. In this modification, the air flowing to the carbureter enters the lamp through a series of holes 37, formed in the tube 3, of the burner. These holes may be positioned at any suitable height. The second form of embodiment just described may still be modified by doing away with the holes 34, and the sleeve 26, and replacing them by a single lighting opening provided in the flange 33, and close under ordinary conditions by means of a small pivoted valve or any other suitable device.

lVhen light hydrocarbons are employed in the lamp, the vapors contained in the body 1, are easily carried by the air current passing through the body, and the mixture admitted to the burner is much too rich in hydrocarbon. For this reason, the device shown in Fig. 4 has been provided. In this form of the invention a plurality of supplemental air admitting holes are provided in the central tube 8. These holes are normally closed by the piston 15, which in this instance is extended upward sothat the supplemental air holes can only be opened by raising the said piston still farther after the lower air inlet holes 10, have been entirely opened. This form of the piston 15, is for the purpose of causing the holes 39, of the piston to register with the holes 38, cited above and to consequently provide a supplemental supply of air which allows of the proportions of the mixture being exactly controlled according to the requirements.

Having now fully described my said invention, what I claim and desire to secure by Letters Patent, is:

1. In an incandescent hydrocarbon lamp, the combination of a lamp body, porous material in said body, a tube secured in the bottom of said lamp body and formed with arranged inlet holes at difl'erent levels, a conical partition wall secured to the inside of said tube to form a mixing chamber, a movable piston in said tube, means for actuating said piston, and a tube surrounding aporhon of the tube to divide the flow of Mr and cause same to enter the mixing chamber and the porous material, there being openings in the bottom of the piston and the conical partition for the admission of said air to the burner.

2. In a lamp of the class described, the combination of a body portion, porous material in the body portion, an extension thereon, a tube supported in the body portion and formed with openings, a second tube surrounding and spaced from the first mentioned tube, the said space communicating with the extension and the interior of the lamp, the bottom of the second mentioned tube bein above the lower openings in the first mentloned tube and formed with openings, a piston operating in the first mentioned tube, the bottom of the piston having openings, means for moving the piston, and means for admitting air through the extension of the lamp body.

3. In a lamp of the class described, the combination of a lamp body, porous material in the lamp body, said porous material having a plurality of openings formed therein, a tube supported in the lam body and formed with openings a second tube surrounding a portion of the first mentioned tube, said second tube being open at the top and communicating with the body portion and formed at its bottom with openings above certain of the openings in the first mentioned tube, a piston in the first mentioned tube to re ulate the openings in said tube, said piston avin openings in its bottom which are out o alinement with the openings in the bottom of the said second mentioned tube, means for controlling the movement of the piston, and means for admitting air to the body and the top of the second mentioned tube.

4. In a lamp of the. class described the combination of a body, a tube mountedt erein and having a plurality of openings, a burner on the upper end of the tube, a piston mounted in the tube, said piston having openings adapted to be brought into registry with certain of the openings in the tube, the bottom of the piston havin openings a second tube surrounding an spaced rom a portion of the first mentioned tube, the bottom of the tube being above the level of the lower openings in the first mentioned tube, said bottom having openings which are out of alinement with the openings in the bottom of the piston, means for operating the piston to control the openings, and means for admitting a regulated su ply of air in the body of the lamp above t e level of the top of the second mentioned tube.

5. In a lamp of the class described, the combination of a lamp body, a hollow extension on said lamp body, a tube mounted in the lamp body and extending through the extension, said tube having a lurality of openings, a second tube space from and surrounding the first mentioned tube, the

bottom of said second tube extending across the first mentioned tube intermediate the openings in the latter, the said bottom being conical and formed near its central portion with openings, the upper end of the second mentioned tube opening into the lamp body, a piston operating in the first mentioned tube to regulate the openings in the latter, the bottom of the piston being conical to correspond to the conical bottom of the second mentioned tube, the bottom of said piston having openings near the edge, a rotatable rod, a connection between the rotatable rod and the piston to operate the same, a burner on the upper end of the first mentioned tube, a porous body of material formed with openings and mounted in the lamp body, and means for introducing air {)0 the extension to the burner and the lamp ody.

In testimony whereof I have hereunto set my hand in presence of two witnesses.

J ULES GOULET. Witnesses:

EVAN VELsEN, M. GERBEAULT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G." 

